Question

The time taken for the atrial systole is

• A. 0.56 s
• B. 0.1 s
• C. 0.3 s
• D. 0.8 s

Answer 1

The correct option is B 0.1 s

Atrial systole:- lasts about 0.1 seconds, both atria contract and force the blood from the atria into the ventricles. Ventricular systole:- lasts about 0.3 seconds, both ventricles contract, blood is forced to the lungs via the pulmonary trunk and the rest of the body via the aorta.

So, the correct option is '0.1 s'.